Korean Journal of Otolaryngology - Head and Neck Surgery  2005;48(3):414-417

A Case of Post-Traumatic Pseudomeningocele Presenting as a Cyst of External Auditory Canal.

Jae Ho JEONG 1 ; Seong Ki AHN ; Sea Yuong JEON ; In Sung PARK

Affiliations

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Keywords

Meningocele; External auditory canal; Cyst

Country

Republic of Korea

Language

Korean

Abstract

Pseudomeningoceles are formed by extravasation of cerebrospinal fluid through a dural defect into soft tissue. Although post-traumatic pseudomeningocele rarely occurs in the head and neck, this case demonstrates a traumatic pseudomeningocele in an adult. A 32-year old woman presented a ten-year history of right ear stuffiness and muffled hearing after the head trauma. A soft, nonpulsatile and cystic mass was noted in the right external auditory canal. The MRI scan demonstrated the connection between subarachnoid space and cyst of the right external auditory canal. The right ear was explored and mastoid antrum was partiallyfilled with a cyst connected to the dural defect. The extradural portion of the mass was removed, and the dural defect was repaired with a temporalis fascia-cartilage graft. We report a case of the post-traumatic pseudomeningocle presenting as a cyst of the external auditory canal with a review of the related literature.